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Solution


Q.

Anoxygenic photosynthesis is characteristic of:    [2014]
1 Rhodospirillum  
2 Spirogyra  
3 Chlamydomonas  
4 Ulva  

Ans.

(1)

In Rhodospirillum, the electron donor is an organic compound instead of water; hence no oxygen is released, i.e., anoxygenic photosynthesis occurs. In other plants, water is used as an electron donor, and H+and O2are produced during the photolysis of water.